Re: Linux 2.6.37-rc8

From: Dave Airlie
Date: Wed Jan 05 2011 - 17:50:03 EST


On Thu, Jan 6, 2011 at 8:05 AM, Pavel Machek <pavel@xxxxxx> wrote:
> Hi!
>
>> >> > I still see blank screen on thinkpad x60... but so do I on 2.6.36 with
>> >> > same config, so maybe it is just tricky to configure?
>> >>
>> >> Old bug? I thought we had KMS on 945 pretty well understood by now. Care
>> >> to attach the dmesg with drm.debug=0xe? And to check against linus/master
>> >> for the most recent regression fixes.
>> >
>> > dmesg is attached (delme.gz), as is config.
>> >
>> > And yes, I did git pull few minutes ago...
>>
>> Disable CONFIG_FB_VESA or remove the vga= line from the commandline for a
>> first test.
>
> Yes, that helped, thanks. (But are not framebuffers expected to "take
> over" and replace one another?)

In an ideal world they should, but vesafb can do things to the
hardware and leave it in a bad
state for the intel driver and it doesn't figure it out. Also I think
the handover needs to be done
earlier for Intel as well, like nouveau and radeon do.

Dave.
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